311 lines
13 KiB
Python
311 lines
13 KiB
Python
import aiosqlite
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from typing import Any, Optional
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from decnet.web.repository import BaseRepository
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from decnet.config import load_state, _ROOT
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class SQLiteRepository(BaseRepository):
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"""SQLite implementation of the DECNET web repository."""
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def __init__(self, db_path: str = str(_ROOT / "decnet.db")) -> None:
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self.db_path: str = db_path
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async def initialize(self) -> None:
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async with aiosqlite.connect(self.db_path) as _db:
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await _db.execute("PRAGMA journal_mode=WAL")
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# Logs table
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await _db.execute("""
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CREATE TABLE IF NOT EXISTS logs (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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timestamp DATETIME DEFAULT CURRENT_TIMESTAMP,
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decky TEXT,
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service TEXT,
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event_type TEXT,
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attacker_ip TEXT,
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raw_line TEXT,
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fields TEXT,
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msg TEXT
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)
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""")
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try:
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await _db.execute("ALTER TABLE logs ADD COLUMN fields TEXT")
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except aiosqlite.OperationalError:
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pass
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try:
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await _db.execute("ALTER TABLE logs ADD COLUMN msg TEXT")
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except aiosqlite.OperationalError:
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pass
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# Users table (internal RBAC)
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await _db.execute("""
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CREATE TABLE IF NOT EXISTS users (
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uuid TEXT PRIMARY KEY,
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username TEXT UNIQUE,
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password_hash TEXT,
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role TEXT DEFAULT 'viewer',
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must_change_password BOOLEAN DEFAULT 0
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)
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""")
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try:
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await _db.execute("ALTER TABLE users ADD COLUMN must_change_password BOOLEAN DEFAULT 0")
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except aiosqlite.OperationalError:
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pass # Column already exists
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await _db.commit()
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async def add_log(self, log_data: dict[str, Any]) -> None:
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async with aiosqlite.connect(self.db_path) as _db:
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_timestamp: Any = log_data.get("timestamp")
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if _timestamp:
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await _db.execute(
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"INSERT INTO logs (timestamp, decky, service, event_type, attacker_ip, raw_line, fields, msg) VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
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(
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_timestamp,
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log_data.get("decky"),
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log_data.get("service"),
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log_data.get("event_type"),
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log_data.get("attacker_ip"),
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log_data.get("raw_line"),
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log_data.get("fields"),
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log_data.get("msg")
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)
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)
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else:
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await _db.execute(
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"INSERT INTO logs (decky, service, event_type, attacker_ip, raw_line, fields, msg) VALUES (?, ?, ?, ?, ?, ?, ?)",
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(
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log_data.get("decky"),
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log_data.get("service"),
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log_data.get("event_type"),
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log_data.get("attacker_ip"),
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log_data.get("raw_line"),
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log_data.get("fields"),
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log_data.get("msg")
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)
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)
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await _db.commit()
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def _build_where_clause(
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self,
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search: Optional[str] = None,
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start_time: Optional[str] = None,
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end_time: Optional[str] = None,
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base_where: Optional[str] = None,
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base_params: Optional[list[Any]] = None
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) -> tuple[str, list[Any]]:
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import shlex
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import re
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where_clauses = []
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params = []
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if base_where:
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where_clauses.append(base_where)
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if base_params:
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params.extend(base_params)
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if start_time:
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where_clauses.append("timestamp >= ?")
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params.append(start_time)
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if end_time:
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where_clauses.append("timestamp <= ?")
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params.append(end_time)
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if search:
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try:
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tokens = shlex.split(search)
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except ValueError:
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tokens = search.split(" ")
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core_fields = {
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"decky": "decky",
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"service": "service",
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"event": "event_type",
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"attacker": "attacker_ip",
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"attacker-ip": "attacker_ip",
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"attacker_ip": "attacker_ip"
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}
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for token in tokens:
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if ":" in token:
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key, val = token.split(":", 1)
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if key in core_fields:
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where_clauses.append(f"{core_fields[key]} = ?")
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params.append(val)
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else:
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key_safe = re.sub(r'[^a-zA-Z0-9_]', '', key)
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where_clauses.append(f"json_extract(fields, '$.{key_safe}') = ?")
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params.append(val)
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else:
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where_clauses.append("(raw_line LIKE ? OR decky LIKE ? OR service LIKE ? OR attacker_ip LIKE ?)")
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like_val = f"%{token}%"
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params.extend([like_val, like_val, like_val, like_val])
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if where_clauses:
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return " WHERE " + " AND ".join(where_clauses), params
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return "", []
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async def get_logs(
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self,
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limit: int = 50,
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offset: int = 0,
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search: Optional[str] = None,
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start_time: Optional[str] = None,
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end_time: Optional[str] = None
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) -> list[dict[str, Any]]:
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_where, _params = self._build_where_clause(search, start_time, end_time)
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_query = f"SELECT * FROM logs{_where} ORDER BY timestamp DESC LIMIT ? OFFSET ?"
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_params.extend([limit, offset])
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async with aiosqlite.connect(self.db_path) as _db:
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_db.row_factory = aiosqlite.Row
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async with _db.execute(_query, _params) as _cursor:
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_rows: list[aiosqlite.Row] = await _cursor.fetchall()
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return [dict(_row) for _row in _rows]
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async def get_max_log_id(self) -> int:
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_query: str = "SELECT MAX(id) as max_id FROM logs"
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async with aiosqlite.connect(self.db_path) as _db:
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_db.row_factory = aiosqlite.Row
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async with _db.execute(_query) as _cursor:
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_row: aiosqlite.Row | None = await _cursor.fetchone()
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return _row["max_id"] if _row and _row["max_id"] is not None else 0
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async def get_logs_after_id(
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self,
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last_id: int,
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limit: int = 50,
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search: Optional[str] = None,
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start_time: Optional[str] = None,
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end_time: Optional[str] = None
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) -> list[dict[str, Any]]:
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_where, _params = self._build_where_clause(search, start_time, end_time, base_where="id > ?", base_params=[last_id])
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_query = f"SELECT * FROM logs{_where} ORDER BY id ASC LIMIT ?"
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_params.append(limit)
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async with aiosqlite.connect(self.db_path) as _db:
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_db.row_factory = aiosqlite.Row
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async with _db.execute(_query, _params) as _cursor:
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_rows: list[aiosqlite.Row] = await _cursor.fetchall()
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return [dict(_row) for _row in _rows]
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async def get_total_logs(
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self,
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search: Optional[str] = None,
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start_time: Optional[str] = None,
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end_time: Optional[str] = None
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) -> int:
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_where, _params = self._build_where_clause(search, start_time, end_time)
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_query = f"SELECT COUNT(*) as total FROM logs{_where}"
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async with aiosqlite.connect(self.db_path) as _db:
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_db.row_factory = aiosqlite.Row
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async with _db.execute(_query, _params) as _cursor:
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_row: Optional[aiosqlite.Row] = await _cursor.fetchone()
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return _row["total"] if _row else 0
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async def get_log_histogram(
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self,
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search: Optional[str] = None,
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start_time: Optional[str] = None,
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end_time: Optional[str] = None,
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interval_minutes: int = 15
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) -> list[dict[str, Any]]:
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# Map interval to sqlite strftime modifiers
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# Since SQLite doesn't have an easy "bucket by X minutes" natively,
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# we can do it by grouping by (strftime('%s', timestamp) / (interval_minutes * 60))
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# and then multiplying back to get the bucket start time.
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_where, _params = self._build_where_clause(search, start_time, end_time)
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_query = f"""
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SELECT
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datetime((strftime('%s', timestamp) / {interval_minutes * 60}) * {interval_minutes * 60}, 'unixepoch') as bucket_time,
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COUNT(*) as count
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FROM logs
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{_where}
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GROUP BY bucket_time
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ORDER BY bucket_time ASC
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"""
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async with aiosqlite.connect(self.db_path) as _db:
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_db.row_factory = aiosqlite.Row
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async with _db.execute(_query, _params) as _cursor:
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_rows: list[aiosqlite.Row] = await _cursor.fetchall()
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return [{"time": _row["bucket_time"], "count": _row["count"]} for _row in _rows]
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async def get_stats_summary(self) -> dict[str, Any]:
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async with aiosqlite.connect(self.db_path) as _db:
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_db.row_factory = aiosqlite.Row
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async with _db.execute("SELECT COUNT(*) as total_logs FROM logs") as _cursor:
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_row: Optional[aiosqlite.Row] = await _cursor.fetchone()
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_total_logs: int = _row["total_logs"] if _row else 0
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async with _db.execute("SELECT COUNT(DISTINCT attacker_ip) as unique_attackers FROM logs") as _cursor:
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_row = await _cursor.fetchone()
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_unique_attackers: int = _row["unique_attackers"] if _row else 0
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# Active deckies are those that HAVE interaction logs
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async with _db.execute("SELECT COUNT(DISTINCT decky) as active_deckies FROM logs") as _cursor:
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_row = await _cursor.fetchone()
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_active_deckies: int = _row["active_deckies"] if _row else 0
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# Deployed deckies are all those in the state file
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_state = load_state()
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_deployed_deckies: int = 0
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if _state:
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_deployed_deckies = len(_state[0].deckies)
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return {
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"total_logs": _total_logs,
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"unique_attackers": _unique_attackers,
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"active_deckies": _active_deckies,
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"deployed_deckies": _deployed_deckies
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}
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async def get_deckies(self) -> list[dict[str, Any]]:
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_state = load_state()
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if not _state:
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return []
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# We can also enrich this with interaction counts/last seen from DB
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_deckies: list[dict[str, Any]] = []
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for _d in _state[0].deckies:
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_deckies.append(_d.model_dump())
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return _deckies
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async def get_user_by_username(self, username: str) -> Optional[dict[str, Any]]:
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async with aiosqlite.connect(self.db_path) as _db:
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_db.row_factory = aiosqlite.Row
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async with _db.execute("SELECT * FROM users WHERE username = ?", (username,)) as _cursor:
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_row: Optional[aiosqlite.Row] = await _cursor.fetchone()
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return dict(_row) if _row else None
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async def get_user_by_uuid(self, uuid: str) -> Optional[dict[str, Any]]:
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async with aiosqlite.connect(self.db_path) as _db:
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_db.row_factory = aiosqlite.Row
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async with _db.execute("SELECT * FROM users WHERE uuid = ?", (uuid,)) as _cursor:
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_row: Optional[aiosqlite.Row] = await _cursor.fetchone()
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return dict(_row) if _row else None
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async def create_user(self, user_data: dict[str, Any]) -> None:
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async with aiosqlite.connect(self.db_path) as _db:
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await _db.execute(
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"INSERT INTO users (uuid, username, password_hash, role, must_change_password) VALUES (?, ?, ?, ?, ?)",
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(
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user_data["uuid"],
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user_data["username"],
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user_data["password_hash"],
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user_data["role"],
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user_data.get("must_change_password", False)
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)
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)
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await _db.commit()
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async def update_user_password(self, uuid: str, password_hash: str, must_change_password: bool = False) -> None:
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async with aiosqlite.connect(self.db_path) as _db:
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await _db.execute(
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"UPDATE users SET password_hash = ?, must_change_password = ? WHERE uuid = ?",
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(password_hash, must_change_password, uuid)
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)
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await _db.commit()
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